JPS5590504A - Preparation of unsoluble chitin derivative - Google Patents

Preparation of unsoluble chitin derivative

Info

Publication number
JPS5590504A
JPS5590504A JP16139078A JP16139078A JPS5590504A JP S5590504 A JPS5590504 A JP S5590504A JP 16139078 A JP16139078 A JP 16139078A JP 16139078 A JP16139078 A JP 16139078A JP S5590504 A JPS5590504 A JP S5590504A
Authority
JP
Japan
Prior art keywords
chitin derivative
organic acid
anhydride
carboxymethylchitin
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16139078A
Other languages
Japanese (ja)
Other versions
JPS6144081B2 (en
Inventor
Junichi Kosugi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kureha Corp
Original Assignee
Kureha Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kureha Corp filed Critical Kureha Corp
Priority to JP16139078A priority Critical patent/JPS5590504A/en
Priority to US06/105,250 priority patent/US4308377A/en
Priority to DK553379A priority patent/DK553379A/en
Priority to CA000342542A priority patent/CA1148944A/en
Priority to EP79303067A priority patent/EP0013181B1/en
Priority to DE7979303067T priority patent/DE2963863D1/en
Publication of JPS5590504A publication Critical patent/JPS5590504A/en
Publication of JPS6144081B2 publication Critical patent/JPS6144081B2/ja
Granted legal-status Critical Current

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  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

PURPOSE: To obtain unsoluble chitin derivative which is biologically and chemically stable as well as safe and has excellent substance permeability, adsorbability and biological adaptability by treating soluble chitin derivative with an organic acid anhydride.
CONSTITUTION: A soluble chitin derivative such as N-deacetylated product of carboxymethylchitin or carboxymethylchitin salt is reacted with an organic acid anhydride alone or a mixture of an organic acid and an organic acid anhydride. As an organic acid or anhydride, acetic acid, propionic acid, butyric acid, valeric acid or the like or anhydride thereof are preferably used. The N-deacetylation degree of above-described soluble chitin derivative is 10W100%, preferably 20W60%. Carboxymethylchitin or salt thereof have 0.1W1.0, preferably 0.3W1.0 carboxymethyl group per one N-acetylglucosane unit which is a unit structure.
COPYRIGHT: (C)1980,JPO&Japio
JP16139078A 1978-12-29 1978-12-29 Preparation of unsoluble chitin derivative Granted JPS5590504A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP16139078A JPS5590504A (en) 1978-12-29 1978-12-29 Preparation of unsoluble chitin derivative
US06/105,250 US4308377A (en) 1978-12-29 1979-12-19 Shaped material comprising denatured chitin and process for preparing same
DK553379A DK553379A (en) 1978-12-29 1979-12-21 CHITINALLY FORMED MATERIALS AND FIVE-METHOD FOR PRODUCING SAME
CA000342542A CA1148944A (en) 1978-12-29 1979-12-21 Shaped material comprising denatured chitin and process for preparing same
EP79303067A EP0013181B1 (en) 1978-12-29 1979-12-28 Chitin derivative, material comprising said derivative and process for the preparation thereof
DE7979303067T DE2963863D1 (en) 1978-12-29 1979-12-28 Chitin derivative, material comprising said derivative and process for the preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16139078A JPS5590504A (en) 1978-12-29 1978-12-29 Preparation of unsoluble chitin derivative

Publications (2)

Publication Number Publication Date
JPS5590504A true JPS5590504A (en) 1980-07-09
JPS6144081B2 JPS6144081B2 (en) 1986-10-01

Family

ID=15734174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16139078A Granted JPS5590504A (en) 1978-12-29 1978-12-29 Preparation of unsoluble chitin derivative

Country Status (1)

Country Link
JP (1) JPS5590504A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56804A (en) * 1979-06-15 1981-01-07 Kureha Chem Ind Co Ltd Chitin molding material
JPS57145813A (en) * 1981-03-05 1982-09-09 Unitika Ltd Molded chitinous article for living body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56804A (en) * 1979-06-15 1981-01-07 Kureha Chem Ind Co Ltd Chitin molding material
JPS57145813A (en) * 1981-03-05 1982-09-09 Unitika Ltd Molded chitinous article for living body

Also Published As

Publication number Publication date
JPS6144081B2 (en) 1986-10-01

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